WCD-28. Ocean Web-based Reanalysis Intercomparison Tools (WRIT)
Abstract
NOAA/PSL and CIRES/CU has created a set of Ocean Web-based Reanalysis
Tools (WRIT). The tools are designed to allow users to easily examine
and compare ocean reanalyses and observational data. Data can be
examined and analyzed prior to potential downloading. Tools include a
map interface which allows users to visualize the data via maps of
means, anomalies, and climatologies of variables an vertical
cross-sections of variables at depth. Users can average together
multiple years/seasons and also create difference maps, and cross
sections. There is a time-series tool to extract/plot time-series from
the gridded fields and read ocean/atmospheric
index time-series including for example Nino3.4, PDO, or station based
tidal data. Users can compare time-series, compute statistics, and plot
wavelets or autocorrelations. New features include looking at runs,
sorting output, and examining extremes. There is also a correlation page
which corre
lates climate index time-series with ocean variables producing maps and
vertical cross-sections. Users can upload their own time-series on the
correlation and time-series pages for analysis and plotting. Finally
there is a profile page which plots vertical profiles, transects, and
time by depth plots of ocean analyses. Ocean variables include
temperature, salinity, and u/v currents at depth. Single level variables
include SST, heat flux, sea surface height, wind fluxes, bottom
temperature, and ice. Reanalyses currently included are the NOAA/GODAS,
ECWMF ORAS5, ECMWF ORA20C, NASA ECCO V4, GLORYS, SODA 3.4.2 and SODA
3.7.2, BRAN2020. Observational datasets include EN4 temperature/salinity
observation and the NOAA OISST, ERSSTv5 and HadISST SST datasets and
GPCP Precipitation. The tools are designed to be easy to use and provide
output in multiple formats. Documentation provides links to the original
datasets. The webpages are available at https://psl.noaa.gov/data/writ/